Ponències/Comunicacions de congressoshttp://hdl.handle.net/2117/2552
Fri, 09 Dec 2016 15:42:40 GMT2016-12-09T15:42:40ZExperimental study on rockfall fragmentation: in situ test design and first resultshttp://hdl.handle.net/2117/88758
Experimental study on rockfall fragmentation: in situ test design and first results
Gili Ripoll, José Antonio; Ruiz Carulla, Roger; Matas Casado, Gerard; Corominas Dulcet, Jordi; Lantada Zarzosa, Maria de Las Nieves; Núñez Andrés, María Amparo; Mavrouli, Olga Christina; Buill Pozuelo, Felipe; Moya Sánchez, José; Prades Valls, Albert; Moreno, Sjædric
Fragmentation is a common feature of rockfalls that exerts a strong influence over the trajectories of the generated blocks, the impact energies and the runout. Real scale rockfall tests have traditionally been designed to evaluate the parameters of rockfall motion. In this contribution we present the results of a set of tests carried out in a limestone quarry that will be used to calibrate and support rockfall propagation models. A total of 56 blocks ranging between 0.2 and 4.8 m3 were dropped from two slope profiles with different morphology and falling height (16.5 and 27.5m total fall). Trajectories of the blocks and velocities were tracked with three high-speed video cameras. Some 43% of the blocks fragmented upon impact with the ground. Most of the blocks were massive limestone although a small percentage displayed a varying amount of finite fissures. The characteristics of the blocks, in particular the size and the Schmidt L hammer rebound were measured before the tests. The results show a lack of correlation between the Schmidt L hammer rebound and the disintegration of the blocks. Finally, it has been observed that the volume (size) distribution of the fragments resulting from the disintegration follow a power law with negative exponents ranging between 0.18 and 0.69. These results are consistent with the observed volume distributions in several natural rockfall events inventoried in limestone environments.
Wed, 13 Jul 2016 17:10:49 GMThttp://hdl.handle.net/2117/887582016-07-13T17:10:49ZGili Ripoll, José AntonioRuiz Carulla, RogerMatas Casado, GerardCorominas Dulcet, JordiLantada Zarzosa, Maria de Las NievesNúñez Andrés, María AmparoMavrouli, Olga ChristinaBuill Pozuelo, FelipeMoya Sánchez, JoséPrades Valls, AlbertMoreno, SjædricFragmentation is a common feature of rockfalls that exerts a strong influence over the trajectories of the generated blocks, the impact energies and the runout. Real scale rockfall tests have traditionally been designed to evaluate the parameters of rockfall motion. In this contribution we present the results of a set of tests carried out in a limestone quarry that will be used to calibrate and support rockfall propagation models. A total of 56 blocks ranging between 0.2 and 4.8 m3 were dropped from two slope profiles with different morphology and falling height (16.5 and 27.5m total fall). Trajectories of the blocks and velocities were tracked with three high-speed video cameras. Some 43% of the blocks fragmented upon impact with the ground. Most of the blocks were massive limestone although a small percentage displayed a varying amount of finite fissures. The characteristics of the blocks, in particular the size and the Schmidt L hammer rebound were measured before the tests. The results show a lack of correlation between the Schmidt L hammer rebound and the disintegration of the blocks. Finally, it has been observed that the volume (size) distribution of the fragments resulting from the disintegration follow a power law with negative exponents ranging between 0.18 and 0.69. These results are consistent with the observed volume distributions in several natural rockfall events inventoried in limestone environments.Susceptibility assessment of rainfall-triggered flows and slides in the Central-Eastern Pyreneeshttp://hdl.handle.net/2117/88491
Susceptibility assessment of rainfall-triggered flows and slides in the Central-Eastern Pyrenees
Hurlimann Ziegler, Marcel; Lantada Zarzosa, Maria de Las Nieves; Gonzalez, Marta; Pinyol, Jordi
Rainfall-induced flows and slides are hazardous processes in mountainous regions and suscep-tibility assessments with resulting maps are helpful tools for land-use planners. In the present study, all the available information on recent events has been gathered and incorporated in an inventory. The governing fac-tors of the 2262 entries were analyzed and preliminary susceptibility matrices were established. Two different terrain units were applied and compared: grid cells and first-order catchments. The results showed that slope angle between 30 and 35º and land cover classes like debris screes or grassland are the most significant fac-tors. In addition, the Melton Ratio higher than ~0.7 in the first-order catchments seems to be another critical parameter. Finally, two types of susceptibility maps were created, although the ones working with first-order catchments look more appropriate for the application at regional scale and the use for land-use planning.
Mon, 04 Jul 2016 16:58:41 GMThttp://hdl.handle.net/2117/884912016-07-04T16:58:41ZHurlimann Ziegler, MarcelLantada Zarzosa, Maria de Las NievesGonzalez, MartaPinyol, JordiRainfall-induced flows and slides are hazardous processes in mountainous regions and suscep-tibility assessments with resulting maps are helpful tools for land-use planners. In the present study, all the available information on recent events has been gathered and incorporated in an inventory. The governing fac-tors of the 2262 entries were analyzed and preliminary susceptibility matrices were established. Two different terrain units were applied and compared: grid cells and first-order catchments. The results showed that slope angle between 30 and 35º and land cover classes like debris screes or grassland are the most significant fac-tors. In addition, the Melton Ratio higher than ~0.7 in the first-order catchments seems to be another critical parameter. Finally, two types of susceptibility maps were created, although the ones working with first-order catchments look more appropriate for the application at regional scale and the use for land-use planning.Conceptualización y desarrollo de un sistema para el soporte a la decisión espacial colectiva: el sistema geoespacial de inteligencia colectivahttp://hdl.handle.net/2117/78231
Conceptualización y desarrollo de un sistema para el soporte a la decisión espacial colectiva: el sistema geoespacial de inteligencia colectiva
Castillo Rosas, Juan Daniel; Jiménez Vélez, Álex Fernando; Monguet Fierro, José María; Núñez Andrés, María Amparo
In this paper we present the progress of a research that focuses on validating an intelligent geospatial system aimed to support decision-making in complex geographic scenarios, whereby current and prospective geospatial patterns could be generated (through which it may provide), with the support based on Collective Intelligence and Artificial Intelligence. The system mainly focuses on the organisation and management of resources linked to territories in order to support decision-making in the planning process.
Mon, 26 Oct 2015 12:46:57 GMThttp://hdl.handle.net/2117/782312015-10-26T12:46:57ZCastillo Rosas, Juan DanielJiménez Vélez, Álex FernandoMonguet Fierro, José MaríaNúñez Andrés, María AmparoIn this paper we present the progress of a research that focuses on validating an intelligent geospatial system aimed to support decision-making in complex geographic scenarios, whereby current and prospective geospatial patterns could be generated (through which it may provide), with the support based on Collective Intelligence and Artificial Intelligence. The system mainly focuses on the organisation and management of resources linked to territories in order to support decision-making in the planning process.Geospatial system of collective intelligence: A technological application for the interdisciplinary study of the geographical space complexityhttp://hdl.handle.net/2117/28196
Geospatial system of collective intelligence: A technological application for the interdisciplinary study of the geographical space complexity
Castillo Rosas, Juan Daniel; Jiménez Vélez, Álex Fernando; Díez Rodríguez, José José; Monguet Fierro, José María; Núñez Andrés, María Amparo
Fri, 05 Jun 2015 10:49:58 GMThttp://hdl.handle.net/2117/281962015-06-05T10:49:58ZCastillo Rosas, Juan DanielJiménez Vélez, Álex FernandoDíez Rodríguez, José JoséMonguet Fierro, José MaríaNúñez Andrés, María AmparoTowards a collective spatial analysis proposal of a new paradigm for supporting the spatial decision-making from a geoprospective approachhttp://hdl.handle.net/2117/28195
Towards a collective spatial analysis proposal of a new paradigm for supporting the spatial decision-making from a geoprospective approach
Castillo Rosas, Juan Daniel; Núñez Andrés, María Amparo; Monguet Fierro, José María; Jiménez Vélez, Álex Fernando
This paper presents the progress of a research work that seeks to establish prospective spatio-temporal
locations of goods, services or events in a given territory primarily through the application of concepts and/or
tools that combine Collective Intelligence (CI), Geographic Information Science (GISc) and Complexity
Theory. Relying on this notion, probable and plausible future scenarios could be projected to conduct various
studies within the context of the Geoprospective (an emerging field of research aimed at issues of territorial
forecasting), which might provide valuable alternatives in the decision-making process in order to carry out
anticipatory actions to achieve or avoid such scenarios. In the light of the above, it is suggested that this kind of Collective Spatial Analysis (CSA) would provide a new paradigm about how to perform spatial analysis, the same that is based on a cognitive approach of a multidisciplinary group of users who collectively
participate with their knowledge on an interdisciplinary basis, and not from a limited single user approach
that uses geometric, statistical or mathematical geoprocessing algorithms.
Fri, 05 Jun 2015 10:24:58 GMThttp://hdl.handle.net/2117/281952015-06-05T10:24:58ZCastillo Rosas, Juan DanielNúñez Andrés, María AmparoMonguet Fierro, José MaríaJiménez Vélez, Álex FernandoThis paper presents the progress of a research work that seeks to establish prospective spatio-temporal
locations of goods, services or events in a given territory primarily through the application of concepts and/or
tools that combine Collective Intelligence (CI), Geographic Information Science (GISc) and Complexity
Theory. Relying on this notion, probable and plausible future scenarios could be projected to conduct various
studies within the context of the Geoprospective (an emerging field of research aimed at issues of territorial
forecasting), which might provide valuable alternatives in the decision-making process in order to carry out
anticipatory actions to achieve or avoid such scenarios. In the light of the above, it is suggested that this kind of Collective Spatial Analysis (CSA) would provide a new paradigm about how to perform spatial analysis, the same that is based on a cognitive approach of a multidisciplinary group of users who collectively
participate with their knowledge on an interdisciplinary basis, and not from a limited single user approach
that uses geometric, statistical or mathematical geoprocessing algorithms.Las habilidades sociales del docente universitario: una formación hacia la competencia interpersonalhttp://hdl.handle.net/2117/27666
Las habilidades sociales del docente universitario: una formación hacia la competencia interpersonal
Gómez Soberón, José Manuel Vicente; Berbegal Mirabent, Jasmina; Cañabate Carmona, Antonio; Farrerons Vidal, Óscar; Huerta Carrillo, María; Montero Mercadé, Lídia; Mora Giné, Mercè; Santos Boada, Germán; Torre Martínez, María del Rocío de la; Corral Manuel de Villena, Ignacio de
Desde el ICE de la UPC se ha planteado una nueva formación dirigida a todo el profesorado basada en la adquisición de competencias docentes. Uno de los módulos de formación puesto en marcha trabaja la adquisición de la competencia interpersonal. Hasta la fecha se han realizado dos cursos a lo largo del año 2013. En este artículo se detallan los contenidos tratados en el módulo y las experiencias desarrolladas por algunos de los profesores que lo pusieron en práctica.
Promoted by the ICE of the UPC has been set a new training for all teachers based on the acquisition of teaching skills. One of the started training modules works the acquirement of interpersonal competence. For the time being there have been two courses, both developed throughout 2013. This article describes the content covered in the module and the experiences which were carried out by some of the teachers who implemented it.
Wed, 29 Apr 2015 13:50:19 GMThttp://hdl.handle.net/2117/276662015-04-29T13:50:19ZGómez Soberón, José Manuel VicenteBerbegal Mirabent, JasminaCañabate Carmona, AntonioFarrerons Vidal, ÓscarHuerta Carrillo, MaríaMontero Mercadé, LídiaMora Giné, MercèSantos Boada, GermánTorre Martínez, María del Rocío de laCorral Manuel de Villena, Ignacio deDesde el ICE de la UPC se ha planteado una nueva formación dirigida a todo el profesorado basada en la adquisición de competencias docentes. Uno de los módulos de formación puesto en marcha trabaja la adquisición de la competencia interpersonal. Hasta la fecha se han realizado dos cursos a lo largo del año 2013. En este artículo se detallan los contenidos tratados en el módulo y las experiencias desarrolladas por algunos de los profesores que lo pusieron en práctica.
Promoted by the ICE of the UPC has been set a new training for all teachers based on the acquisition of teaching skills. One of the started training modules works the acquirement of interpersonal competence. For the time being there have been two courses, both developed throughout 2013. This article describes the content covered in the module and the experiences which were carried out by some of the teachers who implemented it.Análisis de la implantación de una red exprés de autobuses con carril BUS-VAO: caso de la entrada a Barcelona desde el Baix Llobregathttp://hdl.handle.net/2117/27231
Análisis de la implantación de una red exprés de autobuses con carril BUS-VAO: caso de la entrada a Barcelona desde el Baix Llobregat
Puignau Arrigain, Sara Ahetze; Campos Cacheda, Jose Magin; Lantada Zarzosa, Maria de Las Nieves
Los autobuses exprés están siendo una solución acertada en distintas ciudades europeas para cubrir la movilidad ocupacional interurbana. En el caso de Cataluña, han sido en la actualidad tema de controversia la necesidad y el funcionamiento de este tipo de redes y los carriles de priorización que las conforman para que realmente descongestionen las vías perjudicadas y nuevos usuarios opten por cambiar a este modo de transporte. Es por ello que, tomando la perspectiva del usuario y su principal motivo de elección de modo, el tiempo de viaje, se ha querido contribuir a caracterizar, con este estudio concreto
sobre el corredor del Baix Llobregat a Barcelona, en qué medida mejoran los tiempos de recorrido los autobuses exprés y sus alimentadores, los distintos tipos de carriles y la priorización de los distintos modos, parámetro definitorio considerado relevante y
subestimado en este tipo de actuaciones. Con la actuación óptima inferida, los tiempos de viaje en autobús quedan reducidos más de
5 minutos para todos los municipios de estudio, con incluso disminuciones de media hora para algunos de ellos. Las diferencias de tiempo de recorrido entre coche y autobús se atenúan y el coche percibe cambios muy leves de tiempos de recorrido. El vehículo de alta
ocupación (VAO) tendría mejoras despreciables de 5 minutos en tiempos de viaje en los mejores casos al beneficiarse del carril Bus-VAO. Así, se ha ideado una metodología para poder extraer conclusiones previas del sentido de una posible actuación en cada contexto.
Thu, 09 Apr 2015 17:34:27 GMThttp://hdl.handle.net/2117/272312015-04-09T17:34:27ZPuignau Arrigain, Sara AhetzeCampos Cacheda, Jose MaginLantada Zarzosa, Maria de Las NievesLos autobuses exprés están siendo una solución acertada en distintas ciudades europeas para cubrir la movilidad ocupacional interurbana. En el caso de Cataluña, han sido en la actualidad tema de controversia la necesidad y el funcionamiento de este tipo de redes y los carriles de priorización que las conforman para que realmente descongestionen las vías perjudicadas y nuevos usuarios opten por cambiar a este modo de transporte. Es por ello que, tomando la perspectiva del usuario y su principal motivo de elección de modo, el tiempo de viaje, se ha querido contribuir a caracterizar, con este estudio concreto
sobre el corredor del Baix Llobregat a Barcelona, en qué medida mejoran los tiempos de recorrido los autobuses exprés y sus alimentadores, los distintos tipos de carriles y la priorización de los distintos modos, parámetro definitorio considerado relevante y
subestimado en este tipo de actuaciones. Con la actuación óptima inferida, los tiempos de viaje en autobús quedan reducidos más de
5 minutos para todos los municipios de estudio, con incluso disminuciones de media hora para algunos de ellos. Las diferencias de tiempo de recorrido entre coche y autobús se atenúan y el coche percibe cambios muy leves de tiempos de recorrido. El vehículo de alta
ocupación (VAO) tendría mejoras despreciables de 5 minutos en tiempos de viaje en los mejores casos al beneficiarse del carril Bus-VAO. Así, se ha ideado una metodología para poder extraer conclusiones previas del sentido de una posible actuación en cada contexto.Multi-satellite altimetry and GOCE geoid based surface and subsurface currents in the Mediterranean Seahttp://hdl.handle.net/2117/26437
Multi-satellite altimetry and GOCE geoid based surface and subsurface currents in the Mediterranean Sea
Martínez Benjamín, Juan José; Chang, Chi-Hung; Kuo, Chung-Yen; Shum, C.K.; Yi, Yuchan
Thu, 19 Feb 2015 15:48:42 GMThttp://hdl.handle.net/2117/264372015-02-19T15:48:42ZMartínez Benjamín, Juan JoséChang, Chi-HungKuo, Chung-YenShum, C.K.Yi, YuchanThe Baleares 2013 Calibration Campaign of Jason-2 and Saral Altimetershttp://hdl.handle.net/2117/26407
The Baleares 2013 Calibration Campaign of Jason-2 and Saral Altimeters
Martínez Benjamín, Juan José; Frappart, Frédéric; Roussel, Nicolas; Biancale, Richard; Gárate Pasquín, Jorge; Martin Davila, José; Perez, Begoña; Gracia Gómez, Carlos; López Bravo, Rogelio; Tapia Gómez, Ana M.; Gili Ripoll, José Antonio; González González, Juan Carlos; Hernández Pajares, Manuel; Salazar Lino, Mário
The 2013 Balearic campaign GNSS position analysis of the 2013 will be performed with different softwares by different groups (similarly as it is being done in
the International GNSS Service for their different products), in order improve the high demanded accuracy for JASON2 and SARAL altimeters precise calibration.
In particular JPL GIPSY-OASIS software will be used, with the undifferenced PPP ambiguity fixing strategy. In order to improve the results accuracy, two similar
networks are being processed. The first network includes the deployed GNSS receivers and the reference stations. The second one is a control network, defined
by using the permanent receivers in the California dense network with a similar distribution as the main altimeter campaign network. In this case, the position of
the receivers plying the role of buoys are being processed in the same kinematic way than the actual buoys, in order to compare them with the very accurate
positions obtained with GIPSY-OASIS static processing.
Wed, 18 Feb 2015 11:02:28 GMThttp://hdl.handle.net/2117/264072015-02-18T11:02:28ZMartínez Benjamín, Juan JoséFrappart, FrédéricRoussel, NicolasBiancale, RichardGárate Pasquín, JorgeMartin Davila, JoséPerez, BegoñaGracia Gómez, CarlosLópez Bravo, RogelioTapia Gómez, Ana M.Gili Ripoll, José AntonioGonzález González, Juan CarlosHernández Pajares, ManuelSalazar Lino, MárioThe 2013 Balearic campaign GNSS position analysis of the 2013 will be performed with different softwares by different groups (similarly as it is being done in
the International GNSS Service for their different products), in order improve the high demanded accuracy for JASON2 and SARAL altimeters precise calibration.
In particular JPL GIPSY-OASIS software will be used, with the undifferenced PPP ambiguity fixing strategy. In order to improve the results accuracy, two similar
networks are being processed. The first network includes the deployed GNSS receivers and the reference stations. The second one is a control network, defined
by using the permanent receivers in the California dense network with a similar distribution as the main altimeter campaign network. In this case, the position of
the receivers plying the role of buoys are being processed in the same kinematic way than the actual buoys, in order to compare them with the very accurate
positions obtained with GIPSY-OASIS static processing.Breakwater settlement monitoring with InSAR datahttp://hdl.handle.net/2117/26015
Breakwater settlement monitoring with InSAR data
Pros, Francesc; González López, Silvia; Martínez Benjamín, Juan José; Palau Teixidó, Vicenç; Duro, Javier
This paper presents a use case of the Persistent Scatterer Interferometry (PSI) technique apply to Civil Engineering to monitor the dikes settlement on the Port of Barcelona. A geostatistical analysis of the two available datasets of PSI data have been made on a Geographic Information System to obtain a continuous deformation surface. This approach allows us to study the different subsidence velocities that occur within the sections of the breakwater which are in a different consolidation phase. The two datasets of InSAR data were obtained from different satellites and different time periods so a new methodology was developed for concatenating the two measurements a posteriori. Finally, InSAR and GPS measurement are compared to validate the obtained results.
Wed, 21 Jan 2015 14:49:11 GMThttp://hdl.handle.net/2117/260152015-01-21T14:49:11ZPros, FrancescGonzález López, SilviaMartínez Benjamín, Juan JoséPalau Teixidó, VicençDuro, JavierThis paper presents a use case of the Persistent Scatterer Interferometry (PSI) technique apply to Civil Engineering to monitor the dikes settlement on the Port of Barcelona. A geostatistical analysis of the two available datasets of PSI data have been made on a Geographic Information System to obtain a continuous deformation surface. This approach allows us to study the different subsidence velocities that occur within the sections of the breakwater which are in a different consolidation phase. The two datasets of InSAR data were obtained from different satellites and different time periods so a new methodology was developed for concatenating the two measurements a posteriori. Finally, InSAR and GPS measurement are compared to validate the obtained results.